rs485commdlg.cpp

eMbedded visual c++ 串口应用实例

// RS485CommDlg.cpp : implementation file
//

#include "stdafx.h"
#include "RS485Comm.h"
#include "RS485CommDlg.h"
#include "TConvert.h"
#include "DlgSeriesSetup.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

CString str1;
int Count=0;
char strSend[100];
HANDLE   hCommThread;   
HANDLE   hReadEvent;   
BOOL m_bOpened;
HANDLE m_hIDComDev;
DWORD dwError;
DWORD dwThreadID;
bool brun=false;
/////////////////////////////////////////////////////////////////////////////
// CRS485CommDlg dialog

BOOL SerialOpen( int nPort, DWORD nBaud )
{

	if( m_bOpened ) return( TRUE );

	TCHAR szPort[15];
	DCB dcb;
    dcb.DCBlength=sizeof(DCB);   
	wsprintf( szPort, _T("COM%d:"), nPort );
	m_hIDComDev = CreateFile( szPort,
		GENERIC_READ | GENERIC_WRITE,
		0,
		NULL,
		OPEN_EXISTING,
		0,
		NULL 
		);

	if( m_hIDComDev == (HANDLE)-1)
	{
		DWORD dwError=GetLastError();
		::MessageBox(0,_T("ゴ秨Com Port